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dalvyx [7]
3 years ago
15

Can you help me with this? 2 - -(-1/8) + -7/4

Mathematics
2 answers:
WITCHER [35]3 years ago
5 0

=2- (+1/-8)+-7/4

=2- (+1/-8)-7/4

=2- -0.125-7/4

=2+0.125-7/4

=2+0.125-1.75

=2.125-1.75

=0.375


den301095 [7]3 years ago
3 0

Hello!

Note that when seeing an odd number of negatives next to each other, it will remain negative, while having an even number would be positive. For example, -- is +, while --- is -.

Based on this information, we can rewrite the equation below.

2-1/8-7/4

Let's rewrite 7/4 out of 8.

2-1/8-14/8

2-15/8

Let's rewrite 2 as an improper fraction.

16/8-15/8=1/8

Therefore, our answer is 1/8.

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Dmitriy789 [7]

The answer of the given questions

a) 39 and b) 63

Step-by-step explanation:

Here are the solutions of given questions

a) 4^{3} -5^{2}

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b) 6^{2} +3^{3}

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3 years ago
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kvv77 [185]

Vă rugăm să găsiți imaginea întrebării atașate mai jos:

Răspuns:

A este proporțională

B este proporțională

C nu este proporțional

D este proporțional

E nu este proporțională

F este proporțional

Explicație pas cu pas:

Pentru a determina proporționalitatea:

Obținem constanta proporționalității

Pentru valorile din tabelul 1;

Luând primul punct:

x = 1; y = 5

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1 = 5k

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Test:

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x = 1/5 * 15; x = 3

Prin urmare; (a) este proporțională

B.)

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2 = 6k

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Test:

y = 15

x = k * y

x = 1/3 * 15; x = 5

Prin urmare; (b) este proporțională

C.)

x = 2; y = 6

7 α 3,5

7 = 3,5k

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Test:

y = 5

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Prin urmare; (c) nu este proporțională

x = 0,5; y = 1

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0,5 = k

Test:

y = 4

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Prin urmare; (d) este proporțională

x = 0,2; y = 2

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k = 0,1

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x = 1; y = 12

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Test:

y = 84

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